class_docstr: A file in the standard format of the UCD.
  
  See: https://www.unicode.org/reports/tr44/#Format_Conventions
  
  Note that, as described there, the Unihan data files have their
  own separate format.
code: def __iter__(self) -> Iterator[List[str]]:
      return self.records()
  
imports: import dataclasses
  import os
  import sys
  import zipfile
  from functools import partial
  from textwrap import dedent
  from typing import Iterator, List, Optional, Set, Tuple
label_desc: Use image node_id 3 for calling the UcdFile obj's underlying member method code with example usage: obj.__iter__() and returns: self